1. CSS friendly.
2. Incorporate space for ads without compromising the look&feel
3. Users will be able to customize the color “theme” for their profile page.
4. The main nav should include links to high level items: “outfitters, store, classifieds, sweepstakes, contact us”
5. No Flash but should have rollover states
6. Please take into consideration how users are going to post a new activity update, view their blog, switch to photo gallery, etc. User experience important.